Extinction coefficient is a very important parameter in the field of particle sizing technology using optical fluctuation method. But the existing method dealing with it is not perfect.

消光系统在光脉动法颗粒粒径测量技术中是一个十分重要的物理量，但现有的消光系数处理方法有许多不完善的地方。

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Exactly measurement of the fluctuation of the atmosphere refractivity is important for the research on the optical property of atmosphere an and it's application on the environment detection.

精确测量大气的折射率起伏，对于研究大气的光学性质及其在环境监测中的应用有着重要的意义。

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We verifies the opinion through our simulating that the fluctuation of optical power make output errors of the IFOG on the condition that the angular acceleration is being.

指出在角加速度存在的情况下，光功率的波动产生IFOG输出误差，通过仿真验证了所提出的观点。

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